Resize MP4

Change video resolution and resize MP4 videos for any destination
No account required

Resize MP4 videos quickly and easily

Easily resize your MP4 videos online with Flixier in just a few clicks; no downloads or installs are required! With our MP4 file resizer, you can quickly and easily adjust any framing issues by cropping your videos, convert full HD videos to 720p to save space, or change landscape videos to vertical for publishing on Instagram, TikTok, and Facebook reels. With Flixier, you can easily enhance your MP4 files after resizing them and generate subtitles automatically in seconds!

Resize MP4

Resize MP4 videos for any online platform

Our MP4 file resizer offers preset video sizes optimized for YouTube, Instagram, TikTok, and other video-sharing platforms to make resizing your MP4 videos as easy as possible. Flixier's social media safe zones feature will help you ensure that your videos look perfect on every platform after resizing them. 

Have complete control when resizing MP4 videos

On top of our video size presets, our MP4 file resizer allows you to type in a custom size for your videos. You can type in your own custom resolution and then adjust the framing of your video freely by dragging it on the canvas. 

Resize and enhance your MP4 videos

Flixier's video enhancer features can help you make your MP4 stand out after resizing it. With just a few adjustments to the brightness, sharpness, and vibrance sliders, you can make your videos look brighter, clearer, and more lively in just a matter of seconds.

Resize MP4 video online

With Flixier, you can resize MP4 videos directly within your browser; no installation is required. You can resize MP4 videos on Windows, Mac, Chromebooks, laptops, or other devices. All you need is a modern browser! We use powerful cloud servers to process your videos in seconds so you can enjoy a fast, smooth experience, even on older devices.

How to resize an MP4 file:

How to resize an MP4 file:
1
Upload

Log into your Flixier account and create a new project. Choose an Aspect Ratio that matches your desired video size. Drag your video over to the library. Alternatively, you can click the Import button to bring your video over from various cloud platforms.

2
Resize

Resize your video by dragging its edges with the mouse button to make it fit the canvas you've chosen. If you need a specific resolution, simply click on the empty space next to the canvas, open the Canvas Options menu and enter a custom resolution for your video.

3
Export

After you resize your MP4 video, click the Export button in the upper right corner. Flixier will take a few minutes to process your video, and then you can save it to your computer or publish it straight to TikTok, YouTube, and Instagram.

Why use Flixier's online MP4 resizer?

Resize MP4 to fit every screen

A free Flixier account gives you access to all the features you need to resize videos – MP4 or otherwise. You can select from social media size templates and safe zones or enter your own dimensions. Test it yourself and see if it's the right tool for your needs!

Rotate and resize MP4 video online

Flixier isn't limited to resizing! You can use our online editor to perform all kinds of edits. Rotate videos, crop them, cut and trim them, all in just a couple of clicks! On top of that, you can use Flixier to add text to videos or generate subtitles automatically to enhance their accessibility and engagement on social media.

Customize videos with our online MP4 resizer

Flixier supports all popular media formats, including MKV, AVI, and MOV. This means you can edit or resize videos easily without having to convert them beforehand. Flixier automatically converts all files to MP4 format, making it easier to edit and play them back in your browser and better compatible with online platforms.

Resize MP4 videos easily

You don't need any editing experience to resize your MP4 videos with Flixier! Our social media presets make it easy to resize your videos, and the intuitive interface ensures that you can still edit your videos like a pro, even if you don't have any editing experience.

What people say about Flixier

Steve Mastroianni - RockstarMind.com

I’ve been looking for a solution like Flixier for years. Now that my virtual team and I can edit projects together on the cloud with Flixier, it tripled my company’s video output! Super easy to use and unbelievably quick exports.

Steve Mastroianni - RockstarMind.com
Evgeni Kogan

My main criteria for an editor was that the interface is familiar and most importantly that the renders were in the cloud and super fast. Flixier more than delivered in both. I've now been using it daily to edit Facebook videos for my 1M follower page.

Evgeni Kogan
Anja Winter, Owner, LearnGermanWithAnja

I'm so relieved I found Flixier. I have a YouTube channel with over 700k subscribers and Flixier allows me to collaborate seamlessly with my team, they can work from any device at any time plus, renders are cloud powered and super super fast on any computer.

Anja Winter, Owner, LearnGermanWithAnja

Frequently Asked Questions

How do I make an MP4 file smaller?
How do I make an MP4 file smaller?
How do i resize an mp4 video for free?
How do i resize an mp4 video for free?
Can I resize an MP4 file on Windows or Mac?
Can I resize an MP4 file on Windows or Mac?

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